EP0251987B1 - Appareil mobile pour nettoyer des surfaces - Google Patents

Appareil mobile pour nettoyer des surfaces Download PDF

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Publication number
EP0251987B1
EP0251987B1 EP87730048A EP87730048A EP0251987B1 EP 0251987 B1 EP0251987 B1 EP 0251987B1 EP 87730048 A EP87730048 A EP 87730048A EP 87730048 A EP87730048 A EP 87730048A EP 0251987 B1 EP0251987 B1 EP 0251987B1
Authority
EP
European Patent Office
Prior art keywords
cleaning machine
floor cleaning
arresting
lever
tool holder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87730048A
Other languages
German (de)
English (en)
Other versions
EP0251987A1 (fr
Inventor
Dieter Thiel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hako Werke GmbH and Co
Original Assignee
Hako Werke GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hako Werke GmbH and Co filed Critical Hako Werke GmbH and Co
Publication of EP0251987A1 publication Critical patent/EP0251987A1/fr
Application granted granted Critical
Publication of EP0251987B1 publication Critical patent/EP0251987B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4038—Disk shaped surface treating tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
    • A47L11/30—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction
    • A47L11/302—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction having rotary tools
    • A47L11/305—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction having rotary tools the tools being disc brushes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4063—Driving means; Transmission means therefor
    • A47L11/4069—Driving or transmission means for the cleaning tools

Definitions

  • the invention relates to a mobile floor cleaning machine with a rotationally driven, essentially disk-shaped work tool, in particular a cleaning brush, which is detachably attached to a tool holder coupled to the shaft of the drive motor (DE-C-930 948).
  • Such floor cleaning machines are known in a wide variety of forms and often have the form of a so-called scrubber drier, i.e. Water is supplied to the working area of a rotating cleaning brush which is in engagement with the floor, and behind the machine the remaining water is taken up again from the floor by means of a suction foot and returned to a liquid container of the machine.
  • a scrubber drier i.e. Water is supplied to the working area of a rotating cleaning brush which is in engagement with the floor, and behind the machine the remaining water is taken up again from the floor by means of a suction foot and returned to a liquid container of the machine.
  • the user occasionally has to change the work tool, either to replace a defective work tool with a new one or to provide another tool for another machining operation, for example to replace the cleaning brush used for wet scrubbing with a type of polishing disc with which a Bean operation is carried out.
  • the replacement of work tools takes place in that the user tilts the floor cleaning machine out of its working position, so that the work tool is easily accessible and can be detached from the tool holder and replaced by another work tool or a replacement work tool.
  • the work tool is replaced in this way, it is desirable on the one hand to be able to carry it out without an auxiliary tool, for example a wrench.
  • the replacement tool must be so firmly connected to the tool holder during operation that it cannot become detached from it.
  • the latter can be achieved by screwing the work tool onto the tool holder or attaching it using a type of strong clamping bayonet connection, but it is then practically no longer possible to loosen the work tool by hand without auxiliary tools, since turning the work tool in the then the tool holder including the motor shaft rotates in the corresponding direction.
  • a floor cleaning machine of the type mentioned at the outset is designed according to the invention by a locking element which can be moved between a release position and a drive position and which, in the locking position, rotates the tool holder preventively comes into engagement with a stop in the tool holder and is disengaged from the tool holder in the release position, the stop preferably being formed by the boundary wall of a recess in the tool holder.
  • the floor cleaning machine according to the invention thus has a locking element provided in it, with the aid of which the tool holder can be held non-rotatably in order to enable the loosening of a work tool attached to it and the fastening of a work tool without auxiliary tools to be used by the user.
  • the locking element can be moved from the release position into the locking position, for example by means of a lifting magnet or by means of a Bowden cable.
  • the locking element consists of a pivotably mounted, two-armed lever, one end of which can be brought into locking engagement with the stop in the tool holder, the lever being in the release position in the operating position of the floor cleaning machine and in a position tilted for releasing the working tool the floor cleaning machine is in the locked position.
  • This lever thus comes into locking engagement with the tool holder only when the tillage machine is in the position in which the replacement of the working tool takes place.
  • a weight body is provided on the arm of the lever, which lies on the side of the pivot axis facing away from the lockable end, with the aid of which the lever is in the operating position of the floor cleaning machine comes into the release position by gravity, while the lever is automatically pivoted by gravity when the floor cleaning machine is tilted so that it comes into the locking position.
  • the weight body can be located above the end of the lever which can be brought into locking engagement and its center of gravity can lie on a perpendicular which in the locking position is closer to the end of the lever which can be brought into locking engagement than in the release position.
  • the weight body need not be designed as a separate body, but also, for example, from a thickening or the like. of the lever arm can be formed.
  • its pivot axis can run perpendicular to the axis of rotation of the working tool.
  • the working tool is accordingly arranged obliquely to the floor, so that only one edge region comes into engagement with the floor and this engagement and thus the strength of the drive through Adjustment of the inclination of the axis of rotation of the work tool can be changed, so the pivot axis of the lever is preferably on the higher side of the work tool with the axis of rotation inclined perpendicularly.
  • the locking element can be attached to the bracket.
  • the floor cleaning machine shown schematically in FIG. 1 is a scrubbing machine to be guided by the user on the handle 9, which runs on wheels 2, 3 and has a plate-shaped cleaning brush 1 which is driven in the direction of the arrow during operation.
  • the cleaning machine is advanced by a slightly inclined position of the cleaning brush 1, so that the portion of the cleaning brush that engages the floor exerts a propelling effect.
  • the cleaning brush 1 is made of a hose 5 a storage container 4 fed cleaning liquid, which supports the cleaning process and which is sucked up behind the main housing of the floor cleaning machine in a known manner by the suction base 7 and guided via a hose 8 into a receiving container 6.
  • the user pivots the operating handle 10 in the direction of the handle 9, as a result of which the motor (not shown in FIG. 1) rotates the cleaning brush 1 and the water supply and suction process is carried out. As soon as the user releases the operating handle 10, the operation of the floor cleaning machine is interrupted.
  • the motor 19 is attached to a U-shaped bracket which has a base plate 22 and leg plates 23.
  • leg plates 23 there are guide slots 24, by means of which the console is held pivotably suspended on stub axles 26 provided on brackets 25.
  • a shaft 20 which is driven by the motor 19 and has an axially extending partial projection 21 extends through the base 22 of the console.
  • a tool holder 14 is placed on this shaft with its central bore 16, the wedge projection 21 of the shaft 20 coming into engagement with a keyway 17 in the tool holder 14, so that the tool holder 14 is held on the shaft 20 in a non-rotatable manner.
  • the attachment of the tool holder (not shown) against loosening from the shaft 20 can be carried out by means of a screw screwed into the shaft 20 in the axial direction and a corresponding washer.
  • the tool holder 14 has radial locking projections 15, which are used to fasten a cleaning brush 1, which has a disk-shaped carrier plate 11 and bristles 12 which extend essentially downwards in FIG. In the central region of the carrier plate 11 there is an opening, in the edge region of which elastic clamping tongues are formed.
  • the brush 1 is pressed against the tool holder 14 from below, so that the central cylindrical region of the tool holder 14 extends through the central opening in the carrier plate 11 and the locking projections 15 are adjacent to the free ends of the clamping tongues 13 lie.
  • the locking projections 15 are then pushed under the clamping tongues 13 and thus a firm, clamping engagement between the tool holder 14 and the cleaning brush 1 is produced.
  • a lever 30 serving as a locking element is provided.
  • aligned bores 37 are attached to the underside of the bottom 22 of the bracket, the clear spacing of which is somewhat greater than the length of the bearing bush 31 of the lever 30.
  • This bearing bush can be brought between the tabs 37 and by means of the Pin 36, which then extends through the holes in the tab 37 and the central bore in the socket 31 and is secured against displacement in the usual manner, are pivotally attached to the bracket about the axis 31 ⁇ , the axis 31 ⁇ perpendicular to the shaft 20 and thus runs to the axis of rotation 1 ⁇ of the cleaning brush 1.
  • the lever 30 has at its end located between the bottom 22 of the console and the tool holder 14 Arms 32 has a hook-shaped end 33, while its arm 34 located outside the area of the console is angled upward and carries a weight body 35 at its free end.
  • the lever 30 In the normal operating position of the floor cleaning machine, the lever 30 is in the release position shown in FIG. 3, in which the perpendicular L runs through the center of gravity of the weight body 35 on the side of the pivot axis 31 ⁇ facing away from the arm 23.
  • FIG. 3 shows a position of the axis of rotation of the tool holder 14 which is pivoted by 3.5 ° with respect to the vertical, and thus the cleaning brush 1.
  • This pivoted position is achieved by controlled pivoting of the console 22, 23 and thus the motor 19 around the stub axle 26, wherein, as can be seen in FIG. 3, that side of the cleaning brush 1 comes into engagement with the floor and generates a propulsion for the floor cleaning machine which is on the opposite side of the pivot axis 31 ⁇ of the axis of rotation 1 ⁇ .
  • the propulsion can be controlled by adjusting the inclination of the axis of rotation 1 ⁇ .
  • the floor cleaning machine can be tilted so that the axis of rotation 1 ⁇ of the tool holder 14 and the cleaning brush 1, as shown in FIG. 4, is inclined even more with respect to the vertical, approximately by 30 °.
  • the weight body 35 has been shifted with its center of gravity up to beyond the pivot axis 31 ⁇ in the direction of the arm 32 of the lever 30, so that the vertical line L through its center of gravity is now on the other side of the pivot axis 31 ⁇ compared to FIG. 3 lies.
  • the lever 30 is tilted about the pivot axis 31 ⁇ into the locking position shown in FIG. 4, in which the end 33 of the arm 32 of the lever 30 enters one of the cutouts 18 in the tool holder 14.
  • these pocket-shaped recesses 18 lie adjacent to the hub region of the tool holder 14 surrounding the central bore 16 and are separated from one another by axially and radially extending wall sections. If the cleaning brush 1 is now rotated by hand to release it from the tool holder 14 when the floor cleaning machine is tilted and the lever 30 in the locking position shown in FIG Rotation of the tool holder 14, ie the cleaning brush 1 can be easily released by the user even with a relatively firm connection of the tool holder 14 and the cleaning brush 1 without the aid of an additional tool.
  • a replacement cleaning brush or another working tool can then be placed on the tool holder 14 and brought into firm engagement by rotation, because the lever 30 prevents the tool holder 14 from rotating in its locking position.

Landscapes

  • Cleaning In General (AREA)

Claims (9)

1. Machine mobile de nettoyage des sols comprenant un outil travaillant (1) entraîné en rotation, sensiblement en forme de disque, notamment une brosse de nettoyage, qui est fixé de façon démontable à un porte-outil (14) couplé à l'arbre du moteur d'entraînement (19), caractérisée par un élément de blocage (30) qui peut se déplacer entre une position de déblocage et une position de blocage et qui, dans la position de blocage, entre en prise avec une butée du porte-outil (14) en empêchant ainsi le porte-outil (14) de tourner tandis que, dans la position de déblocage, il est hors de prise avec le porte-outil (14).
2. Machine mobile de nettoyage des sols selon la revendication 1, caractérisée en ce que la butée est formée par la paroi limite d'un évidement (18).
3. Machine mobile de nettoyage des sols selon la revendication 1 ou 2, caractérisée en ce que l'élément de blocage est constitué par un levier à deux bras (30), monté oscillant dont une extrémité (33) peut être mise en prise pour le blocage avec la butée du porte-outil (14) et en ce que le levier (30) se trouve en position de déblocage lorsque la machine de nettoyage des sols est en position de travail et qu'il se trouve en position de blocage lorsque la machine de nettoyage des sols se trouve dans une position inclinée qu'elle prend pour séparer l'outil travaillant (1).
4. Machine mobile de nettoyage des sols selon la revendication 3, caractérisée en ce qu'un contre­poids (35) est prévu sur le bras (34) du levier (30) qui se trouve sur le côté de l'axe d'oscillation (31ʹ) qui est à l'opposé de l'extrémité (33) pouvant être mise en prise de blocage.
5. Machine mobile de nettoyage des sols selon la revendication 4, caractérisée en ce que le contre-poids (35) se trouve au-dessus du niveau de l'extrémité (33) du levier (30) qui peut être mise en prise pour le blocage et que son centre de gravité se trouve sur une verticale (L) qui est plus rapprochée de l'extrémité (33) du levier (30) qui peut être mise en prise pour le blocage dans la position de blocage que dans la position de déblocage.
6. Machine mobile de nettoyage des sols selon une des revendications 3 à 5, caractérisée en ce que l'axe d'oscillation (31') du levier (30) s'étend perpendiculairement à l'axe de rotation (1ʹ) de l'outil travaillant (1).
7. Machine mobile de nettoyage des sols selon une des revendications 3 à 6, dans laquelle l'axe de rotation (1ʹ) de l'outil travaillant (14) est réglable en inclinaison pour permettre le réglage de la force de propulsion, caractérisée en ce que l'axe d'oscillation (31ʹ) du levier (30) se trouve sur le côté de l'outil travaillant (1) qui est le plus haut lorsque l'axe de rotation (1ʹ) est incliné par rapport à la verticale.
8. Machine mobile de nettoyage des sols selon une des revendications 1 à 7, dans laquelle le moteur d'entraînement (19) est tenu dans une console (22, 23) à travers la paroi de fond (22) de laquelle passe l'arbre (20) qui porte le porte-outil (14), caractérisée en ce que l'élément de blocage (30) est fixé à la console (22, 23).
9. Machine mobile de nettoyage des sols selon la revendication 1 ou 2, caractérisée en ce que l'élément de blocage peut être déplacé de la position de déblocage à la position de blocage par un électro-aimant ou par un câble Bowden.
EP87730048A 1986-06-27 1987-05-06 Appareil mobile pour nettoyer des surfaces Expired - Lifetime EP0251987B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8617171U 1986-06-27
DE8617171U DE8617171U1 (de) 1986-06-27 1986-06-27 Fahrbare Bodenreinigungsmaschine

Publications (2)

Publication Number Publication Date
EP0251987A1 EP0251987A1 (fr) 1988-01-07
EP0251987B1 true EP0251987B1 (fr) 1991-01-02

Family

ID=6795942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87730048A Expired - Lifetime EP0251987B1 (fr) 1986-06-27 1987-05-06 Appareil mobile pour nettoyer des surfaces

Country Status (2)

Country Link
EP (1) EP0251987B1 (fr)
DE (2) DE8617171U1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005045310B3 (de) * 2005-09-16 2007-03-22 Alfred Kärcher Gmbh & Co. Kg Fahrbare Bodenreinigungsmaschine
DE102008060099B3 (de) * 2008-11-25 2010-07-15 Stein & Co. Gmbh Vorrichtung für Pflegescheiben
US20140237743A1 (en) * 2013-02-27 2014-08-28 Tennant Company Cleaning head assemblies having touch-free attachment and alignment technology
US10251524B2 (en) 2013-02-27 2019-04-09 Tennant Company Cleaning head assemblies having touch-free attachment and alignment technology

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708086A1 (de) * 1987-03-13 1988-09-22 Henkel Kgaa Fahrbarer bodenreinigungsautomat
DE3708087A1 (de) * 1987-03-13 1988-09-22 Henkel Kgaa Fahrbarer bodenreinigungsautomat
DE20112322U1 (de) * 2001-07-26 2001-10-25 Hako Gmbh Vorrichtung zur Befestigung und/oder zum Antreiben eines Bürstenkörpers
US6871371B2 (en) * 2002-04-16 2005-03-29 Castle Rock Industries, Inc Floor care machine with replaceable floor care element
DE102005039095A1 (de) * 2005-08-09 2007-02-15 Alfred Kärcher Gmbh & Co. Kg Halterung für Polier- oder Scheuerscheibe
DE102009014560A1 (de) 2009-03-16 2010-09-23 Alfred Kärcher Gmbh & Co. Kg Auswechselbare Kehrbürsteneinrichtung und Kehrmaschine mit einer derartigen Kehrbürsteneinrichtung
PL2408972T3 (pl) 2009-03-17 2013-04-30 Kaercher Gmbh & Co Kg Alfred Zamiatarka samojezdna
DE102011002978B4 (de) * 2011-01-21 2012-08-16 Süddeutsche Bürsten- und Kunststoffabrik Eugen Gutmann GmbH Bürstenscheibe, maschinenseitiger Flansch und Kupplungseinrichtung umfassend eine Bürstenscheibe und einen Flansch
KR20160057406A (ko) 2013-09-13 2016-05-23 알프레드 캐르혀 게엠베하 운트 컴파니. 카게 바닥 세척 기계를 위한 세척 툴과, 바닥 세척 기계
CN113367619B (zh) * 2021-06-28 2022-04-29 重庆博林生活服务集团有限公司 刷盘的拆装结构及拆装方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE391517C (de) * 1923-05-05 1924-03-10 Boebel & Schmith Parkettreinigungsgeraet
CH268486A (de) * 1948-09-25 1950-05-31 Mueller Bruetsch & Co Maschine zum Reinigen von Fussböden.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005045310B3 (de) * 2005-09-16 2007-03-22 Alfred Kärcher Gmbh & Co. Kg Fahrbare Bodenreinigungsmaschine
WO2007033719A1 (fr) 2005-09-16 2007-03-29 Alfred Kärcher Gmbh & Co. Kg Machine a nettoyer le sol pouvant etre deplacee
DE102008060099B3 (de) * 2008-11-25 2010-07-15 Stein & Co. Gmbh Vorrichtung für Pflegescheiben
US20140237743A1 (en) * 2013-02-27 2014-08-28 Tennant Company Cleaning head assemblies having touch-free attachment and alignment technology
US10226159B2 (en) * 2013-02-27 2019-03-12 Tennant Company Cleaning head assemblies having touch-free attachment and alignment technology
US10251524B2 (en) 2013-02-27 2019-04-09 Tennant Company Cleaning head assemblies having touch-free attachment and alignment technology

Also Published As

Publication number Publication date
DE3766894D1 (de) 1991-02-07
DE8617171U1 (de) 1986-10-09
EP0251987A1 (fr) 1988-01-07

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